The Moon - Lunar Orbiter 5

Sinuous rilles in the Marius Hills region on the Moon

Lunar Orbiter 5 image of the plateau west-northwest of Marius crater
on the Moon. Note the two sinuous rilles which cut across a ridge at
the center of the image. Also visible are volcanic domes and cones. The round "cobra-head" feature at the center left is roughly 2.5 km in diameter.
The image is 80 km across and north is at 2:30.
(Lunar Orbiter 5, frame M-215)Larger image: